.jumbotron {
  background-image: url('/static/img/world_background.jpg');
  background-position: center;
  background-size: cover;
  padding: 0;
  height: 80vh;
}

/* Small Devices, Tablets */
@media only screen and (min-width: 768px) {
    body {
        /* Margin bottom by footer height */
        margin-bottom: 3rem;
    }
}